Accessory tray for attachment to a seat



FIG. 1 is a front elevational view of a accessory tray for attachment to a seat embodying my new design;

FIG. 2 is an end elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a accessory tray for attaching to a seat, as shown and described. 